[distcc] distcc failed in building freebsd(make -j4 buildworld)

[=?GB2312?B?1dTmqQ==?=]

Two machines with absolutly same environment
make without -j was correct
but make with -j was failed, error as follows:


building static ncurses library
building shared library libncurses.so.6
ranlib libncurses.a
sh /usr/earth/tools/install.sh -C -o root -g wheel -m 444 libncurses.a
/usr/ob
j/usr/earth/tmp/usr/lib
sh /usr/earth/tools/install.sh -C -o root -g wheel -m 444 curses.h
term.h termc
ap.h unctrl.h
/usr/earth/lib/libncurses/../../contrib/ncurses/include/ncurses_dl
l.h /usr/obj/usr/earth/tmp/usr/include
sh /usr/earth/tools/install.sh -s -o root -g wheel -m 444 libncurses.so.6 /u
sr/obj/usr/earth/tmp/lib
/usr/obj/usr/earth/tmp/usr/include/ncurses.h -> curses.h
ln -fs /usr/obj/usr/earth/tmp/lib/libncurses.so.6
/usr/obj/usr/earth/tmp/usr/li
b/libncurses.so
/usr/obj/usr/earth/tmp/usr/lib/libcurses.a -> libncurses.a
/usr/obj/usr/earth/tmp/usr/lib/libtermcap.a -> libncurses.a
/usr/obj/usr/earth/tmp/usr/lib/libtermlib.a -> libncurses.a
/usr/obj/usr/earth/tmp/usr/lib/libmytinfo.a -> libncurses.a
/usr/obj/usr/earth/tmp/usr/lib/libtinfo.a -> libncurses.a
/usr/obj/usr/earth/tmp/usr/lib/libcurses.so -> libncurses.so
/usr/obj/usr/earth/tmp/usr/lib/libtermcap.so -> libncurses.so
/usr/obj/usr/earth/tmp/usr/lib/libtermlib.so -> libncurses.so
/usr/obj/usr/earth/tmp/usr/lib/libmytinfo.so -> libncurses.so
/usr/obj/usr/earth/tmp/usr/lib/libtinfo.so -> libncurses.so
1 error
*** Error code 2
1 error
*** Error code 2
1 error
*** Error code 2
1 error

[1] Exit 2 make -j4 buildworld


what's wrong?please help me!